Numerical control device for machine tool
AssigneeFanuc Corporation
InventorsNobuaki Aizawa, Kouichi Noda
Life of this patent
Estimating the term…
Abstract
A numerical control device for a machine tool includes: a timing calculation unit configured to calculate a start timing of a post-reverse movement command by which a position, where the sum of velocities generated in response to a pre-reverse movement command and the post-reverse movement command becomes zero, is equal to a position distanced by an in-position width from the end point of the pre-reverse movement command; and a movement command start unit configured to start the post-reverse movement command in accordance with the start timing calculated by the timing calculation unit.
Claims4
A numerical control device for a machine tool, comprising:
- a program analysis unit configured to read in and analyze a processing program for processing an object by controlling axes of the machine tool, the processing program including a command by which the direction of movement of one or more axes is reversed;
- a timing calculation unit configured to calculate a start timing of a post-reverse movement command by which a position, where a sum of the velocities generated in response to a pre-reverse movement command and the post-reverse movement command becomes zero, is equal to a position distanced by an in-position width from an end position of the pre-reverse movement command;
- a movement command start unit configured to start the post-reverse movement command in accordance with the start timing calculated by the timing calculation unit,
- wherein the numerical control device is configured to drive the one or more axes of the machine tool to process the object according to the post-reverse movement command.
Dependencies are inferred from the claim text.